Item name: Acoustic Guitar EQ Pickup Tuner and equalizer in one little box. Light in weight never add too much weight on your guitar. Great sound performance. Size:6.8*3.2*2cm(2.67*1.25*0.78inch) Color: black Material: ABS Package contents: 1* pickup 1* pickup stick 1* battery box output 1* cable 1* mounting accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.